Kerosene to Propane Generator Conversion-Cheap and Easy





Introduction: Kerosene to Propane Generator Conversion-Cheap and Easy

I have yamaha kerosene generator since kerosene is hardly to get, so I experimenting to use gas (propane). And it works.
It don't need any changes on the carburator so if there is no propane gas, I can still use kerosene or gasoline.
And it only cost around $15.

Step 1: What We Need

for this convertion we only need 3 main component.
- high pressure gas regulator
- gas hose
- gas valve (like the one in the picture)

tool: only drill

Step 2: Set Up the Position for Gas Valve

The gas valve will be place aline with the carburator.

Step 3: Now Use Our Drill

Use our drill to make a hole at the air filter cover and air filter honeycomb.

Step 4: Cut the Valve Pipe

use iron saw to cut the pipe on the gas valve, to adjust (if it necessary)

Step 5: Put It Back in Order

Now we can put it back in order.

Step 6: Start You Engine

It will need some feelings to start the engine.
We have to open the gas valve slowly so it will give the right mount of gas.
After it start, try to open and close the gas valve to get engine stationary stage.


Always run the generator on open air or in good ventilation.
The gas will not automatically shutdown when the engine stop running.

Have a nice experiment.
Good luck.




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    Without a proper, vacuum operated, on-demand engine regulator this is dangerous. Please, if you plan on making this conversion, do it properly or face the consequences. You can even make your own on-demand regulator by converting an old fashioned standard regulator (it needs to be the type you can take apart), there's plenty of info on line, but please, don't just use a standard gas appliance regulator, unless you have a death wish & like blowing things up.

    unlike in USA, we in parts of asia don't have a luxury of hardware store and ordering parts that we can pickup from our mail boxes.
    We just tried to utilize what we have most. Just like many inventors before us. They who dare taking the risk of death to make better life.

    We still live in 19 century where there is no insurance company saying it's not safe and not covered. Even our goverment can't provide us with our basic needs. Electricity is never stable thing, sometimes on - plenty off. We can't buy gasoline in jerrycan.

    but thank you for your concerns.
    I still looking to improve my system. If you have know how to built simple solenoid, I will be very happy.

    best regards

    I'm not in the USA either. You are probably better placed to make your own on-demand regulator where you are & then write another instructible to show how to do it. That would give you a great generator which would be safer, more reliable & wouldn't waste valuable gas.

    I will have a google & see what I can turn up, I'm not sure I will be able to post links in these comments, but I could at least give you some keywords to search for.

    Basically, an on-demand gas regulator works in the reverse of a normal one. If you can find an old fuel gas regulator which you can take apart (one with little screws or bolts holding it together) you can dismantle it & mount the spring on the reverse side of the diaphragm (at least I think that's how it's done, I would urge you to double check that first). This would also save you a lot of fuel & would mean when the engine stops, the flow of gas stops too.

    They can also be found on old engines which were equipped to run off gas. Sometimes these are found in scrap yards, some old military units had these supplied too, as a back-up source of fuel, & many would never have been used & could well have been scrapped with other old surplus.

    I've already thinking to use modified sprinkler valve. As you can see in this clip,

    but then I have to make a hole at intake to get the low pressure that needed to open the valve.

    my target is to make modification as simple as it can be.

    Then there is common rules that we can only turn on the generator at open space or outdoor. And never leave running generator unattended.

    I was really on the verge of giving up on deciding about using propane conversions but I think somehow I found the answer. I am a newbie here but I would just like to share my experience since some people might feel the same way. At first I was a bit doubtful if converting gas to propane would really fit my expectations but I've come to realized that yes, it is the answer for my longing prayers. It's very affordable, convenient and is truly a lifesaver. I don't need to spend too much on gasoline and I enjoy the perks of saving my precious time and energy. Just to share, try visiting this website that I found, It's a good reference for your concerns about propane conversions.

    I hope it will help you like it did for me. :)

    Hi Hendro,
    Hey, i never knew it was that easy and cheap!
    Only in this setting you need to take care and remember to turn off the gas supply when the engine is off..
    This guy installed a solenoid to turn off the gas flow when engine shuts off:

    Do you know how the car-conversion works? it would have some sort of flow control synced with the throttle control of the engine, i suppose?

    Great job! keep em coming.. :)

    Thanks for sharing!!
    "Tarik choke sampai stabil"... lol... salam dari Bali Mas!... :D

    my main objective is to make this system as simple as possible so anybody with minimum knowledge and minimum tools can do this conversion. And for those who have greater knowledge can make some improvement from what i have done. Like that guy you've mention above...

    yes it's not totally save... but that is the price we have to pay... if we can't get the proper equipment or don't have money to buy parts we needs, we have to pay by doing more afford and hard works. In this case we have to always pay attention when the generator is running... it's not a problem for me cause usually power outages only run for 1-2 hours( I live in Jakarta) and only 2-3 times a year.

    yes, the main problem on car conversion is throttle control... the system is more complicated it will need solenoid valve, engine management computer, air flow controller, etc... It's too complicated for me... just leave it to the professionals... hehehe... 

    Yes, I totally agree. In indonesia it wont be a problem because the genset would most likely run on the front or back porch of the house, and quite loudly too.. So when it stop working anybody in the house will notice for sure!
    Just remember to tell the wife and anybody in the house to swich the LPG off in case the genset dies.. :)
    i lived in Balikpapan for four years, we had PLN cutoffs everyday there.
    I'm not kidding: everyday for three hours!!

    Anyway, I'm familiar with the noise of the genset on the porch..
    Also the problem of refueling: They dont allow people to buy gasoline with jerrycans in Balikpapan (meant to stop the illegal street vendors), so i had to buy gas to my motorbike then transfer to the genset..

    If i had known your trick back then, it would have been much easier.. I would have done it exactly like you did, no need for solenoid too.. :D

    But for those who have a bit more money to spend, a solenoid would still be recommended..

    hi, i know this instructable is old but what the hack. i'll comment any how...

    it's great.
    can it work on methane gas (organic waste gas) to? the major problem that it is uncompressed, i think...

    what are your recommendations?


    I know that in Philippine they use methane from dump field to generate electricity.

    But I think it's more simple if we use methane to light up fire. the fire is used to boiled up water, then the steam is used to spint a turbin connected to dynamo... or like a steam locomotive...

    or make a stirling engine like - then we use the up an down movement to move coil from a shaker flashlight

    or use peltier concept like

    both of stirling and peltier can use methane to light up the fire they needed.

    although i was wondering(since you pop-up the question) is it possible if we use air pump that usually used on aquarium to pressure up the methane... or using pump that used to fill up air mattress... :-)
    but those pump need electricity to run.... :-p